A functional unit of nature, where living organisms interact among themselves and also with the surrounding physical environment is called as:
1. Population 2. Biological community
3. Ecosystem 4. Biome
Subtopic:  Introduction |
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Level 1: 80%+
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Organisms that are capable of conversion of inorganic material into organic material with the help of the radiant energy of the sun include:

I:  Plants
II:  Photosynthetic bacteria
III:  Chemosynthetic bacteria

 

1. I only 2. I and II only
3. I and III only 4. I, II, and III
Subtopic:  Introduction |
 63%
Level 2: 60%+
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The study of Ecology begins at the level of a/an:
1. Organism 2. Population
3. Cell 4. Biomolecules
Subtopic:  Introduction |
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Level 2: 60%+
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